Improvement in suction-tubes for planing-machines



NrrED STATES PATENT OFFICE.

`cEoI-tGE o. WEsrovEE, or vEENoN, INDIANA, AssIcNoE or ONE-THIRD 1 nrsEIGHT To JAMES A. MccLELLANn, oF sAME PLAGE.

IMPROVEMENT IN SUCTlON-TUBES FOR PLANING-MACHINES, ecc.`

Specification forming part of Letters Patent No. 146,115, dated December30, 1873 application filed October 27, 1873.

To all whom it 'may concern:

Be it known that I, GEORGE G. WEsrovEn, of Vernon, Jennings county,Indiana, have invented a new and useful Suction for Con'- veyiu g Dustand Shavings from VVood-Working Machinery, of which the following is aspecification My invention relates to improvements in those devices fordischarging dust and other light refuse of wood-working machinery, whichcomprise a tube or trunk in which a partial rarefaction is created by anexhaust-fan, so as to cause au atmospheric current to converge fromevery direction toward and into the mouth of the tube of sufficientforce to carry with it such refuse as fast as it is thrown olf by themachine 5 and myimprovements include a construction of the inlet-tubesnear the exhaust-fau, which secures a central, balanced, and equalcurrent or suction on both sides of the fan-shaft, and at the same timesecures bearings for the said shaft external to thc dust-passage; aconstruction of the inlettube, which secures the precipitation, beforereaching the fan, o f fragments whose weight V would be liable to injureit; a catcher or `before it enters the fan,'separates into two branches,C C', which again uniteiu a single passage, B', before entering the fan.Through the portion B' the fan-shaft extends centrally, and occupiesbearings D D', so secured to the opposing walls of the branched portionas to be external to the dust-passage, and, consequently, free fromliability to become choked by passing refuse; while, at the same time,accessible for inspection, lubrication, renewal, etc., withoutdisturl'iing the fan, or even susreachingthe fan, I secure a slowerblast by enlcrgement of the tube at some convenient point, H, from whichsuch fragments, as they reach the slower current, drop into acatchspout, I, whence they are discharged, fro1n` time to time, by meansof a gate, J. A sloping grating, K, located beyond the spout, may

be provided in addition to the above, so as,

without obstructing the passage of dust, to intercept and precipitateany large fragments not otherwise arrested. This grating may be hingedat k, at its upper edge, and be capable of being raised clear of thepassage by means of handle L Vengaging over a catch, M.

I claim herein as new and of my inventionl. The suction-tube B,constructed with branches C C' reunited in a single central passage, B',and serving to support fan-shaft bearings D D' external to thedust-passage, as herein set forth. y

2. In combination with the suction-fan A and tube B, the tubeenlargement H, catchspout I, and gate J, substantially as hereindescribed, for the purpose specified.

3. ln combination with the elements H I J,

the oblique grating K, whether hinged or otherwise. i .v

4. In combination with, the suction-fan A and tube B, the hooded and,hoppered catoliboX F G, constructed and operatingas described, for the'purpose speciiied.

In testimony of which invention I hereunto set Iny hand. c Y GEO. C.VESTOVER.

Attest GEO. H. KNIGHT, JAs. H. LAAJMAN.`

